Your doctor says everything looks fine, but you still feel terrible. The problem might not be your health but how labs define “normal.” Understanding the difference between normal and optimal could ...

Laboratory testing supports most clinical decision-making; however, the concept of a fixed “normal” value is theoretical. Studies have suggested that approximately 7 out of 10 clinical decisions rely ...

Estradiol: 2-14 ng/dL (female, follicular); 2-16 ng/dL (female, luteal); <3.5 ng/dL (postmenopausal); 1.5-5 ng/dL (male) ...

You're likely no stranger to getting lab work done every year or so to check on your overall health. Whether it's part of a routine checkup or because something's out of whack and you want a closer ...

When most people are told their blood work looks normal, they assume it means they are healthy. In reality, functional medicine lab testing reveals a far more uncomfortable truth. Normal does not mean ...

The properties of the blood and the ease of its retrieval make it a useful source for doctors to analyze to measure specific features of homeostasis within patients. This allows for accurate diagnosis ...

"Normal" lab results may not reflect optimal health or individual needs. Reference ranges often represent averages from a not-very-healthy population. Tracking trends and seeking optimal levels is key ...